The present invention relates to a special clothes cleaning agent, which comprises, by mass, 80-100 parts of water, 30-35 parts of salicylic acid, 5-10 parts of essence, 6-12 parts of butyl acrylate, 10-15 parts of a surfactant, 21-35 parts of toluene sulfonic acid, and 5-10 parts of citric acid. According to the present invention, the special clothes cleaning agent has characteristics of excellent cleaning effect, rapid scale cleaning, complete scale dissolving and low cleaning cost, and cannot cause the excessive resource consumption; with the application of the special clothes cleaning agent to clean the stubborn oil stain, the yellow spot, the rust stain, the stain and the like of clothes, the decontamination ability is strong, no damage is generated to clothes, the color of the clothes is bright and the fading is not generated, the insoluble substance is not left on the surface of the cleaned object, the new stain is not generated, the new cover layer harmful to the subsequent step is not formed, and the quality of the cleaned subjected is not affected; and the special clothes cleaning agent can be widely used as the cleaning agent for textile industry, hotels, tourism, homes, household chemical industry, and other places.